Wife has severe hip pain and most likely sciatica

Hi -
My wife has suffered from lower back pain for the last ten years. She takes pain killers, but remains to be very active in exercising. She is 44 years old.

She has been to doctors here in Wisconsin where we live, but there's always been dead ends in terms of more invasive treatment. She sees a chiropractor every other week to help her pain.

Recently, she is feeling more pain in her right hip and Psoas muscles. She is going to begin PT in about six weeks.

Have any of you been through this? Is it mainly Sciatica causing this?
Does anyone have some methods or a course of treatment that really helped them?